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专利名称：Television signal transmitting and receiving
system
发明人：Noriya Sakamoto,Kiyoyuki Kawai,Seijiro
Yasuki
申请号：US07/387998申请日：190801公开号：US05012326A公开日：19910430
摘要：A noninterlaced Y signal is separated into a horizontal high frequency
component H and a horizontal low frequency component L by a LPF and an adder circuitat a time of interlace conversion. The component H is converted to an interlaced signalby a field repeating process comprising an interfield averaging process by an interfieldaveraging circuit, a field thinning out process by a field thinning out circuit and a delayprocess by an interlace conversion circuit. On the other hand, the component L is
converted to an interlaced signal by a line thinning out process by an interlace conversioncircuit. At a time of noninterlace conversion, the interlaced Y signal is separated into thecomponents H and L by an LPF and an adder circuit. The component H is converted to anoninterlaced signal by means of an interfield interpolation process comprised of aninterfield addition process by an interfield adder circuit and a field repeating process by afield repeating circuit, while the component L is converted to a noninterlaced signal by amotion- adaptive interpolation process of a noninterlace conversion circuit.
申请人：KABUSHIKI KAISHA TOSHIBA
代理机构：Oblon, Spivak, McClelland, Maier & Neustadt
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